The MAX2511 is a complete, highly integrated IF transceiver for applications employing a dual-conversion architecture. Alternatively, the MAX2511 can be used as a single-conversion transceiver if the RF operating frequency ranges from 200MHz to 440MHz.
In a typical application, the receiver downconverts a high IF/RF (200MHz to 440MHz) to a 10.7MHz low IF using an image-reject mixer. Functions include an image-reject downconverter with 34dB of image suppression followed by an IF buffer that can drive an off-chip IF filter; an on-chip limiting amplifier offering 90dB of monotonic received-signal-strength indication (RSSI); and a robust limiter output driver. The transmit image-reject mixer generates a clean output spectrum to minimize filter requirements. It is followed by a 40dB variable-gain amplifier that maintains IM3 levels below -35dBc. Maximum output power is 2dBm. A VCO and oscillator buffer for driving an external prescaler are also included.
The MAX2511 operates from a 2.7V to 5.5V supply and includes flexible power-management control. Supply current is reduced to 0.1µA in shutdown mode.
For applications using in-phase (I) and quadrature (Q) baseband architecture for the transmitter, Maxim offers a corresponding transceiver product: the MAX2510.
The MAX2510 has features similar to those of the MAX2511, but upconverts I/Q baseband signals using a quadrature upconverter.
Key Features
Applications/Uses
Single +2.7V to +5.5V Supply
Complete Receive Path:
200MHz to 440MHz (first IF) to
8MHz to 13MHz (second IF)
Limiter with Differential Outputs (adjustable level)
RSSI Function with 90dB Monotonic Dynamic Range
Complete Transmit Path:
8MHz to 13MHz (second IF) to
200MHz to 440MHz (first IF)
On-Chip Oscillator with Voltage Regulator and Buffer
Advanced System Power Management (four modes)
0.1µA Shutdown Supply Current
400MHz ISM Transceivers
IF Transceivers
PACS, PHS, DECT, and Other PCS Wireless Handsets and Base Stations
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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